CN103407374B - The control method of the remaining electric bleed-off system of a kind of electric automobile bus - Google Patents
The control method of the remaining electric bleed-off system of a kind of electric automobile bus Download PDFInfo
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- CN103407374B CN103407374B CN201310286914.4A CN201310286914A CN103407374B CN 103407374 B CN103407374 B CN 103407374B CN 201310286914 A CN201310286914 A CN 201310286914A CN 103407374 B CN103407374 B CN 103407374B
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000005611 electricity Effects 0.000 claims abstract description 14
- 238000012423 maintenance Methods 0.000 claims description 6
- 239000002699 waste material Substances 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
Abstract
The present invention proposes the control method of the remaining electric bleed-off system of a kind of electric automobile bus, more than the bus that ensures to release smoothly electricity, ensure safe in, reduce the waste of electric energy. The remaining electric bleed-off system of this electric automobile bus comprises control module, high voltage power battery, DC-DC converter and high pressure electrical appliance, after the input of DC-DC converter, the parallel connection of high pressure electrical appliance, be connected with the bus of high voltage power battery, the output of DC-DC converter is connected with battery; The bus of high voltage power battery is provided with between input, the contact of high pressure electrical appliance and the output of high voltage power battery of DC-DC converter controls the switch whether high voltage power battery electric power is exported, and switch and DC-DC converter are connected with control module and controlled unit controls. The remaining electric bleed-off system of electric automobile bus of the present invention is simple in structure, and cost is low, can convert the remaining electricity on high voltage power battery power feeds to low tension by DC-DC converter, and charge a battery, and has avoided the waste of energy.
Description
Technical field
The invention belongs to electric automobile safe practice field, specially refer to the control method of the remaining electric bleed-off system of a kind of electric automobile bus.
Background technology
Along with expanding economy, the energy and environmental issue become increasingly conspicuous, and countries in the world have all turned one's attention to environmental protection and energy-conservation electric automobile. And a high-tension circuit that important feature is exactly the in-built guaranteed enough power performance of car of electric automobile, it jeopardizes the use safety of personal safety and on-board high-voltage electrical appliance up to voltage more than 300V. The running current of high-pressure system reaches more than 100 amperes, and the discharge current in the time of instantaneous short-circuit is multiplied especially. Therefore, in the time designing, plan high voltage power system and high-pressure system is carried out to type selecting, not only should fully meet car load power drive requirement, also must guarantee vehicle operating safety, driver and crew's safety and vehicle operating Environmental security. The major issue that must solve when therefore the management to high-voltage electric system and security have become electric automobile research and design.
In current supply circuit due to electric automobile high-voltage electrical system, exist a large amount of capacitive loads, after electrokinetic cell disconnects, still can residual very high voltage and electric energy in current supply circuit, if do not taked the measure of effectively releasing, by entail dangers to vehicle and personal safety. The harm that may bring for fear of dump energy, the method that high-voltage electric system has taked remaining electricity to release after high voltage source is cut off.
At present traditional way that electricity more than bus is released is between battery positive and negative busbar, to increase a power resistor, after disconnecting, battery relay become the form of heat energy heating that remaining electricity is released electric energy conversion by power resistor, there is following problems in this method: 1,, owing to considering the energy loss problem of power resistor on bus, often the time of releasing reaches more than 10 seconds; 2, on bus, remaining electric energy has been consumed, and has wasted the part energy; 3, the extra power resistor increasing increased system cost, reduced reliability.
Summary of the invention
The object of the invention is to propose the control method of the remaining electric bleed-off system of a kind of electric automobile bus, more than the bus that ensures to release smoothly electricity, ensure safe in, reduce the waste of electric energy.
The remaining electric bleed-off system of electric automobile bus of the present invention comprises control module, high voltage power battery, DC-DC converter and high pressure electrical appliance, after the input of described DC-DC converter, the parallel connection of high pressure electrical appliance, be connected with the bus of high voltage power battery, the output of DC-DC converter is connected with battery; The bus of described high voltage power battery is provided with between input, the contact of high pressure electrical appliance and the output of high voltage power battery of DC-DC converter controls the switch whether high voltage power battery electric power is exported, and described switch and DC-DC converter are connected with control module and controlled unit controls.
Specifically, the drive motors that described high pressure electrical appliance at least comprises motor driver and is connected with motor driver.
The control method of the above-mentioned remaining electric bleed-off system of electric automobile bus is as follows: control module is in the time utilizing switch to disconnect the electric power output of high voltage power battery, control DC-DC converter maintenance work, convert the remaining electricity on high voltage power battery to low pressure by DC-DC converter, and be delivered in battery and store, and then close DC-DC converter.
Specifically, control module, in the time utilizing switch to disconnect the electric power output of high voltage power battery, is controlled the DC-DC converter maintenance work scheduled time. As long as it is suitable that described scheduled time is selected, be just enough to convert the remaining electricity on high voltage power battery power feeds to low tension by DC-DC converter, and be delivered in battery and store. Control and without other add ons by the time, can be cost-saving. Can set the scheduled time according to concrete circuit, ensure that on high voltage power battery power feeds, residual remaining electricity is released completely.
Further, in the time utilizing switch to disconnect the electric power output of high voltage power battery, control module is by late release or restart the mode of DC-DC converter, makes the DC-DC converter maintenance work scheduled time. So no matter which kind of state DC-DC converter be before the electric power output that disconnects high voltage power battery, can ensure reliably more than electricity release.
The remaining electric bleed-off system of electric automobile bus of the present invention is simple in structure, and cost is low, can convert the remaining electricity on high voltage power battery power feeds to low tension by DC-DC converter, and charge a battery, and has avoided the waste of energy, has good practicality.
Brief description of the drawings
Fig. 1 is the structure principle chart of the remaining electric bleed-off system of electric automobile bus of the present invention.
Fig. 2 is the schematic diagram of the remaining electric bleed-off system of electric automobile bus of the present invention in the time letting out electricity condition.
Detailed description of the invention
Contrast accompanying drawing below, by the description to embodiment, the specific embodiment of the present invention is described in further detail as effect and the operation principle etc. of the mutual alignment between the shape of related each member, structure, each several part and annexation, each several part.
Embodiment 1:
As shown in Figure 1, the remaining electric bleed-off system of electric automobile bus of the present embodiment comprises control module (not drawing in the drawings), high voltage power battery, DC-DC converter and high pressure electrical appliance, the drive motors that its mesohigh electrical appliance not only comprises motor driver and is connected with motor driver, also comprise other high pressure electrical appliances such as electric air-conditioning, electric heating, after the input of described DC-DC converter, the parallel connection of high pressure electrical appliance, be connected with the bus of high voltage power battery, the output of DC-DC converter is connected with 12V battery and low power used system; The bus of described high voltage power battery is provided with between input, the contact of high pressure electrical appliance and the output of high voltage power battery of DC-DC converter controls the relay switch K1 whether high voltage power battery electric power is exported, and described relay switch K1 and DC-DC converter are connected with control module and controlled unit controls.
As shown in Figure 2, there is capacitive load from principle in motor driver, other high pressure electrical appliances, DC-DC converter, and equivalence becomes C1, C2, C3 respectively. The control method of the above-mentioned remaining electric bleed-off system of electric automobile bus is as follows: control module is in the time utilizing switch to disconnect the electric power output of high voltage power battery, by late release or restart the mode of DC-DC converter, control at least 1 second of DC-DC converter maintenance work, remaining electricity on high voltage power battery is converted to the low tension of 12V by DC-DC converter, and be delivered in 12V battery and store, and then close DC-DC converter.
Claims (3)
1. the control method of the remaining electric bleed-off system of electric automobile bus, the remaining electric bleed-off system of this electric automobile bus comprises control module, high voltage power battery, DC-DC converter and high pressure electrical appliance, after the input of described DC-DC converter, the parallel connection of high pressure electrical appliance, be connected with the bus of high voltage power battery, the output of DC-DC converter is connected with battery; The bus of described high voltage power battery is provided with between input, the contact of high pressure electrical appliance and the output of high voltage power battery of DC-DC converter controls the switch whether high voltage power battery electric power is exported, and described switch and DC-DC converter are connected with control module and controlled unit controls; It is characterized in that control module is in the time utilizing switch to disconnect the electric power output of high voltage power battery, control the DC-DC converter maintenance work scheduled time, convert the remaining electricity on high voltage power battery to low tension by DC-DC converter, and be delivered in battery and store, and then close DC-DC converter.
2. the control method of the remaining electric bleed-off system of electric automobile bus according to claim 1, is characterized in that the drive motors that described high pressure electrical appliance comprises motor driver and is connected with motor driver.
3. the control method of the remaining electric bleed-off system of electric automobile bus according to claim 1, it is characterized in that in the time utilizing switch to disconnect the electric power output of high voltage power battery, control module is by late release or restart the mode of DC-DC converter, makes the DC-DC converter maintenance work scheduled time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310286914.4A CN103407374B (en) | 2013-07-10 | 2013-07-10 | The control method of the remaining electric bleed-off system of a kind of electric automobile bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310286914.4A CN103407374B (en) | 2013-07-10 | 2013-07-10 | The control method of the remaining electric bleed-off system of a kind of electric automobile bus |
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| CN103407374A CN103407374A (en) | 2013-11-27 |
| CN103407374B true CN103407374B (en) | 2016-05-11 |
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| CN201310286914.4A Active CN103407374B (en) | 2013-07-10 | 2013-07-10 | The control method of the remaining electric bleed-off system of a kind of electric automobile bus |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104924909A (en) * | 2015-06-02 | 2015-09-23 | 金龙联合汽车工业（苏州）有限公司 | High-voltage residual electricity discharging system of electric car |
| CN105799516A (en) * | 2016-03-22 | 2016-07-27 | 北京新能源汽车股份有限公司 | High-voltage control box with high-voltage residual electricity discharging function and electric vehicle |
| CN105790587B (en) * | 2016-05-31 | 2019-07-09 | 北京德尔福万源发动机管理系统有限公司 | It is a kind of for the inversion rectifier of mixed dynamic structure, mixed dynamic structure and its control method |
| CN110549812A (en) * | 2018-06-01 | 2019-12-10 | 郑州宇通客车股份有限公司 | Solar automobile air conditioner power supply system and vehicle |
| CN110549811A (en) * | 2018-06-01 | 2019-12-10 | 郑州宇通客车股份有限公司 | Solar-based automobile air conditioner power supply system and vehicle |
| CN113022466A (en) * | 2019-12-05 | 2021-06-25 | 观致汽车有限公司 | Electric automobile and control method and device thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10155243A (en) * | 1996-09-30 | 1998-06-09 | Matsushita Electric Ind Co Ltd | Electric automobile |
| JPH10224902A (en) * | 1997-02-04 | 1998-08-21 | Nissan Motor Co Ltd | Motor driving controller of electric car |
| JP2012065503A (en) * | 2010-09-17 | 2012-03-29 | Toyota Motor Corp | Power supply device for vehicle |
| CN102897114A (en) * | 2011-07-28 | 2013-01-30 | 现代自动车株式会社 | Discharge technique for residual high voltage in hybrid vehicle and method thereof |
| CN102957186A (en) * | 2011-08-12 | 2013-03-06 | 马涅蒂-马瑞利公司 | Discharge device and discharge method to actively discharge capacitor used in electric power system of electric drive vehicle |
-
2013
- 2013-07-10 CN CN201310286914.4A patent/CN103407374B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10155243A (en) * | 1996-09-30 | 1998-06-09 | Matsushita Electric Ind Co Ltd | Electric automobile |
| JPH10224902A (en) * | 1997-02-04 | 1998-08-21 | Nissan Motor Co Ltd | Motor driving controller of electric car |
| JP2012065503A (en) * | 2010-09-17 | 2012-03-29 | Toyota Motor Corp | Power supply device for vehicle |
| CN102897114A (en) * | 2011-07-28 | 2013-01-30 | 现代自动车株式会社 | Discharge technique for residual high voltage in hybrid vehicle and method thereof |
| CN102957186A (en) * | 2011-08-12 | 2013-03-06 | 马涅蒂-马瑞利公司 | Discharge device and discharge method to actively discharge capacitor used in electric power system of electric drive vehicle |
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| CN103407374A (en) | 2013-11-27 |
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Owner name: CHERY NEW ENERGY AUTOMOBILE TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SAIC CHERY AUTOMOBILE CO., LTD. Effective date: 20150713 |
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Effective date of registration: 20150713 Address after: 241000 Yijiang, Anhui Province, Jin Hua Road, No. 226, South Road, No. Applicant after: New-energy automobile Technology Co., Ltd. of Cherry Address before: 241009 Wuhu economic and Technological Development Zone, Anhui, No. 8 Changchun Road Applicant before: Saic Chery Automobile Co., Ltd. |
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Address after: 241000 No. 226 Jin Hua Nan Road, Yijiang hi tech Industrial Development Zone, Anhui, Wuhu Patentee after: Chery New Energy Automobile Co.,Ltd. Address before: 241000 No. 226 Hua Jin South Road, Yijiang District, Anhui, Wuhu Patentee before: CHERY NEW ENERGY AUTOMOBILE TECHNOLOGY Co.,Ltd. |
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